#EFF09B#EFF09B

#EFF09B is a very light, moderate yellow. Relative luminance 0.830; OKLCH L 93.5% C 0.107 H 108.9°. Best body text is #000000 at 17.61:1 contrast (WCAG AA passes).

Color values

HEX	#EFF09B
RGB	rgb(239, 240, 155)
HSL	hsl(61, 74%, 77%)
HSV	hsv(61, 35%, 94%)
CMYK	cmyk(0.4%, 0%, 35.4%, 5.9%)
CIE-LAB	lab(93.03, -12.75, 41.02)
CIE-LCH	lch(93.03, 42.96, 107.27°)
OKLab	oklab(93.55% -0.0344 0.1008)
OKLCH	oklch(93.55% 0.107 108.9)
XYZ	xyz(72.6738, 83.0388, 43.2037)
Luminance	0.8304 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EFF09B #9C9BF0

analogous

#F0C79B #EFF09B #C4F09B

triadic

#EFF09B #9BEFF0 #F09BEF

tetradic

#EFF09B #9BF0C7 #9C9BF0 #F09BC4

square

#EFF09B #9BF0C7 #9C9BF0 #F09BC4

split-complementary

#EFF09B #9BC4F0 #C79BF0

monochromatic

#DEE031 #E6E866 #EFF09B #F8F8D0 #FBFBE4

Accessibility & contrast

On white

1.19

#EFF09B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

17.61

#EFF09B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #EFF09B

17.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EFF09B	#FFFFFF	#000000	##000000
##EFF09B	1.00	1.19	17.61	17.61
#FFFFFF	1.19	1.00	21.00	21.00
#000000	17.61	21.00	1.00	1.00
##000000	17.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#FDE995

Deuteranopia (green-blind)

#FEED9F

Tritanopia (blue-blind)

#FAE6DB

Achromatopsia (no color)

#EBEBEB

Design tokens & code

CSS

--color: #eff09b;
/* rgb */ color: rgb(239, 240, 155);
/* oklch */ color: oklch(93.5% 0.107 108.9);

Tailwind

colors: {
  custom: {
    50: '#f5f4b9',
    500: '#eff09b',
    950: '#000000',
  },
}

SCSS

$custom: #eff09b;
$custom-light: #f5f4b9;
$custom-dark: #000000;

JSON

{
  "hex": "#eff09b",
  "rgb": {
    "r": 239,
    "g": 240,
    "b": 155
  },
  "hsl": {
    "h": 60.706,
    "s": 73.913,
    "l": 77.451
  },
  "oklch": {
    "l": 0.93545,
    "c": 0.10652,
    "h": 108.9
  },
  "luminance": 0.83037
}

Semantic roles & 50–950 ramp

primary

#EFF09B

secondary

#6362CD

accent

#0FD612

background

#FFFFFD

surface

#FFFEF8

border

#D7D6D1

text

#171711

muted

#858581

Preview Lab

Preview with #EFF09B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →